Datacenter

You need both reliability and extreme energy efficiency to meet modern demands for always-on data access. We can help you keep your servers running reliably 24/7 while also accounting for every milliwatt of potential energy savings.

Check out our single chip, small form factor power and current measurement sensor ICs for reduced ohmic losses. We also provide fan motor driver ICs that help you to meet stringent efficiency and audible noise standards—using sensorless and sinusoidal commutation, soft switching, phase advance, soft start and flexible closed loop speed control.

Select a subsystem below to view related products. 

Servers and Data Centers Application Diagram
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    DC/DC Regulator

    ARG81800 – 1A Sync Buck Regulator

    A8586     –  3.5A Buck Regulator

    A8587     – 2A Non-Sync Buck Regulator
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    12V & 48V Power Supply Output

    ACS71240 – Current & Over-Current Sensor

     

    Power Supply AC Input

    ACS724 – Hall Current Sensor

    ACS71240 – Hall Current and Fault Sensor

    ACS732/3 – 1 MHz Current & Over-Current Sensor

    Uninterruptable Power Supply Output

    ACS72981 – Hall Current Sensor

    ACS772 – High Power Current Sensor


    UPS Power Factor Correction

    ACS730 – 1 MHz Hall Sensor with VREF

    ACS733 – 1 MHz Sensor and Over-Current Fault


    Power Distribution Unit

    ACS71240 – Current & Over-Current Sensor

    ACS772 – High Power Current Sensor


    Fully Integrated Isolated Gate Driver

    AHV85110:  Isolated GaNFET Driver with Integrated Isolated Bias Supply

    AHV85111: Isolated GaNFET Driver with Regulated Bipolar Output Drive

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    Door Closure & Card Insertion Sensors

    A1171 – Ultra Sensitive, Micro-Power Hall Switch

    A3211/A3212 – Hall Effect Latches


    Close
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    Cooling Fan & Rack Fans

    A89331 – High Speed, Code Free, Sensorless Driver

    A5931     – Code Free Sensorless Driver

    A5932     – Code Free Sensorless Controller Close
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    Load Management Current Sensor

    ACS71240 – Current & Over-Current Sensor

    ACS70331 – High Resolution GMR Current Sensor     Close

Featured Products

Allegro-28-contact-QFN-ET-and-20-lead-TSSOP-LP-packages

A89331 and A89332

Three Phase Sensorless Drivers
Allegro EX 12 Package

ACS71240

Automotive-Grade, Galvanically Isolated Current Sensor IC
24 contact QFN ES and 24 lead TSSOP LP packages

AMT49406

Code-Free FOC Sensorless BLDC Motor Controller

Documentation & Resources

New 400 kHz Current Sensors Enable More Sustainable Designs in Switch-Mode Power Designs
Technical Article

New 400 kHz Current Sensors Enable More Sustainable Designs in Switch-Mode Power Designs

Really Cool. Really Efficient. New 400 kHz current sensors enable more sustainable designs in switch-mode power designs.
Sensorless and Always Without Reverse Rotation: Rapid and Accurate Startup for Blower Fan Motors
Technical Article

Sensorless and Always Without Reverse Rotation: Rapid and Accurate Startup for Blower Fan Motors

How initial rotor position detection techniques can overcome torque generation challenges to provide anti-reverse, fast, sensorless startup.
Solving the Challenges of Increasing Power Density by Reducing Number of Power Rails
Technical Article

Solving the Challenges of Increasing Power Density by Reducing Number of Power Rails

P0243 - This article overviews challenges associated with high-power-density solutions and the technologies that best enable the desired outcome.
Integrated Power Loss Brake Features Lower Energy Consumption and Reduce Costs in Data-Center Fan Applications
Technical Article

Integrated Power Loss Brake Features Lower Energy Consumption and Reduce Costs in Data-Center Fan Applications

Service interruptions of servers can result in adverse scenarios including inefficient airflows created by fan blades that have lost power to maintenance in the presence of fan blades. This article introduces power loss brake (PLB) functionality and how lost power can be harnessed to improve efficiency while simplifying fan design.
Brochure: Code-Free Gate Drivers for Data-Center Cooling Fans
Brochure

Brochure: Code-Free Gate Drivers for Data-Center Cooling Fans

Our portfolio of three-phase BLDC motor drivers includes solutions with integrated MOSFETs or gate drivers, as well as options for power loss braking for high efficiency.
How Sensor ICs Make Clean Energy Work
Infographic

How Sensor ICs Make Clean Energy Work

Sensor integrated circuits (ICs) are revolutionizing the world of clean energy. Explore the fascinating ways that sensor IC's are shaping out clean energy landscape and paving the way for a more sustainable future.
Magnetic Current Sensing Drives Vehicle Electrification
Technical Article

Magnetic Current Sensing Drives Vehicle Electrification

Modern cars have become increasingly power hungry. Even the “least electrified” vehicles include advanced electronics for infotainment, safety, and engine control. Fully electric vehicles further add high-voltage power domains to charge and drive. Each of these systems shares the need for power monitoring and control, and this is where current sensors are used.
Current Sensing for Power Delivery
Application Note

Current Sensing for Power Delivery

AN296256 - This article will discuss the advantages of various current sensing methods in power delivery.
Demystifying GaN Drivers in Clean Energy Application
Whitepaper

Demystifying GaN Drivers in Clean Energy Application

The next generation of electric switches based on wide bandgap semiconductors are gaining popularity in the market.
Facilitating a Clean Energy Future with Current Sensing Solutions
Technical Article

Facilitating a Clean Energy Future with Current Sensing Solutions

Clean energy technologies, like solar, EV batteries, wind, and hydroelectric, offer a sustainable way to meet energy needs without releasing toxic greenhouse gases.

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